[1]葛安卡,张礼敬,许明颢.超临界乙烯管线阀门安全性分析[J].中国安全生产科学技术,2016,12(3):82-87.[doi:10.11731/j.issn.1673-193x.2016.03.015]
GE Anka,ZHANG Lijing,XU Minghao.Analysis on safety of supercritical ethylene pipeline valve[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(3):82-87.[doi:10.11731/j.issn.1673-193x.2016.03.015]
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超临界乙烯管线阀门安全性分析
GE Anka,ZHANG Lijing,XU Minghao.Analysis on safety of supercritical ethylene pipeline valve[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(3):82-87.[doi:10.11731/j.issn.1673-193x.2016.03.015]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 12
- 期数:
- 2016年3期
- 页码:
- 82-87
- 栏目:
- 现代职业安全卫生管理与技术
- 出版日期:
- 2016-03-30
文章信息/Info
- Title:
- Analysis on safety of supercritical ethylene pipeline valve
- 文章编号:
- 1673-193X(2016)-03-0082-06
- 分类号:
- X93
- 文献标志码:
- A
- 摘要:
- 为了分析某公司超临界乙烯管道阀门的安全性，采用有限元分析软件ANSYS进行模拟和分析，通过创建有限元模型及单元网格划分、施加边界条件及载荷进行求解，对超临界乙烯输送管线断裂阀门进行了结构分析、受力分析，并对阀门预紧状态及操作工作状态进行了模拟计算。分析结果显示，着火事故是由于阀盖密封不严，介质泄漏造成；阀盖密封螺栓紧固力裕度不足，需要加以改进。提出变更螺栓规格，使用优质螺栓，设计阀盖、垫片及螺栓连接的改进建议。
- Abstract:
- In order to analysis the safety of supercritical ethylene pipeline valve in a certain company, the finite element analysis software ANSYS was adopted to carry out simulation and analysis. Through creating the finite element model, meshing the element, imposing boundary conditions and load, and solving, the structure analysis and force analysis were conducted on the broken valve of supercritical ethylene transfer pipeline, and the simulation was conducted on the pre-tightening state and operation working state of valve. The results showed that the ignition accident was caused by the medium leakage due to the untight seal of valve cover. The margin of tightening force for the sealing bolt of valve cover was inadequate, which should be improved. Some improvement suggestions were put forward, such as changing the specification of bolt, using the high quality bolt, and designing the connection of valve cover, gasket and bolt.
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